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Method for selecting urban traffic network path based on dynamic information

A technology of urban transportation and network routing, applied in the field of transportation and communication, can solve the problem that dynamic information cannot be incorporated into the routing model

Inactive Publication Date: 2008-09-03
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings and deficiencies that the static optimal route selection method in the prior art cannot incorporate dynamic information into the route selection model, and provide a method for urban traffic network route selection based on dynamic information

Method used

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  • Method for selecting urban traffic network path based on dynamic information
  • Method for selecting urban traffic network path based on dynamic information
  • Method for selecting urban traffic network path based on dynamic information

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Embodiment Construction

[0042] Embodiments of the present invention are described in detail below in conjunction with accompanying drawings:

[0043] This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation methods and processes are given, but the protection scope of the present invention is not limited to the following embodiments.

[0044] In this embodiment, the Yanshan Overpass in Jinan City is selected as the starting point, and the Jinan Zoo is used as the end point, and the time is selected between 8:00-10:00 in the morning. Two vehicles are used to test, one takes the fixed route of the shortest path, The other vehicle takes the time-saving route calculated by the navigation device at each moment.

[0045] Such as figure 1 As shown, the realization of the present embodiment is aimed at the test vehicle with the navigation device, and the specific steps are as follows:

[0046] ① At a certain moment, collect real-time data ...

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Abstract

The invention relates to a city traffic network path selecting method which is based on dynamic information. The invention includes the following steps: (1) using the ground sensing coil, GPS and other existing information collecting methods to collect real-time traffic information, and establishing real-time information database; (2) using electronic map information to establish city traffic network topological structure map; (3) using Djkstra labeling method to find the optimal path between the commencement and termination dynamically in time. The invention has the merits of easy achievement, high reliability, high immediacy, a few parameters and so on, which can provide real-time and reliable navigation information for modern city traffic inducement.

Description

technical field [0001] The invention relates to a method in the technical field of traffic communication, in particular to a dynamic information-based urban traffic network path selection method. Background technique [0002] In the existing car navigation systems, the selection of the optimal route is mostly based on static information, and the real-time information of urban traffic is rarely used for navigation. In this case, the optimal route given cannot reflect the urban road network. The state of the traffic flow makes it impossible for travelers to know the congestion on urban roads, making people's travel abnormally blind. Therefore, when traffic congestion has become a cancer in modern cities, it is particularly important to find effective ways to use dynamic information for vehicle navigation. [0003] After searching the existing technologies, it was found that: Wu Bijun, Li Lixin, Lei Xiaoping "Shortest Path Search Based on Urban Road Database" Journal of Southw...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/34G08G1/01
Inventor 朱文兴贾磊杨立才
Owner SHANDONG UNIV
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